Southern California Weather Forecast: Winds, Fog, and Mild Temperatures - December 15, 2025

Current Conditions and Coastal Fog

• 🌫️ Cool conditions and clear skies are present across the Southland, with winds becoming a significant factor for the upcoming week.
• 🌊 A live look at Long Beach shows low clouds and fog rolling in along the coast.
• 💨 Offshore flow is expected to influence conditions, with a possibility of the marine layer returning.

Temperature Outlook

• 🌡️ Current temperatures are cool, with Santa Monica at 55 and Chino at 51.
• ☀️ Tomorrow, temperatures are predicted to be well above normal, with highs in the 60s and 70s in many areas.
• 📈 Inland areas like San Bernardino could reach 83 degrees, while Pasadena is expected to hit 78.

Wind Advisory and Air Quality

• 🌬️ A wind advisory is in effect until Tuesday morning for parts of Los Angeles County, particularly mountains, passes, and canyons, due to gusty north to northeast winds.
• ⚠️ Air quality alerts are in place for areas like the Antelope Valley and the Grapevine, with unhealthy conditions for sensitive groups reported.

Mid-Week Weather Shift

• 💨 By Wednesday afternoon, strong gusty winds are expected, potentially leading to additional wind advisories and high wind warnings on Wednesday and Thursday.
• ☁️ The forecast for the LA Basin includes low clouds and fog, with a high of 80 degrees.
• 🏜️ Dry conditions are expected throughout the week.

Overnight Lows

• 🥶 Overnight lows are expected to remain chilly, in the 40s and 50s, with some inland areas dropping into the 30s.